package lc.q51_100;


public class Q100 {

    public boolean isSameTree(TreeNode p, TreeNode q) {
        // 层次遍历
        if (p== null && q== null) return true;
        if (p == null || q == null) return false;
        if (p.val != q.val) return false;
        return isSameTree(p.left, q.left) && isSameTree(p.right,q.right);
    }

}
